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MH20=2x1g+16g=18g/mol
-2 mole CL2
MCl2=2x35.5g=71g
1mol - 71g
2mole - x
x-2molex71g/1mol=142g/mol
-3 mole O2
MO2=2x16g=32g/mol
1mol - 32g
3mole - x
x=3molex32g/1g=96g/mol
18 g/mol = 0,018 kg/mol
2Cl2 masa molowa= (2*35*2=140)
140 g/mol = 0,14 kg/mol
3O2 masa molowa= (3*16*2=96)
96 g/mol = 0,096 kg/mol
M2Cl2 (dwa Cl2 ponieważ mamy 2 mole tej substancji)= 4*35,5u=142g/mol
M 3O2= 6*16u=96g/mol
;) ;)